Combined split and crosscut shears.



- part in section.

UNTTED STATES Patented October 6, 1903.

PATENT Ormes.

FRANK G. KOEHLER, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO Y HENRY POLST, OF ST.V LOUIS, MISSOURI.

COMBINEDJSPYLIT AND CROSSCUT SHEARS'.,

SPECIFICATION forming part of Letters' Patent No. 740,763, dated October 6, 1903. Application nea June 15, 1903. sain No. 161,462. or@ man.)

To @ZZ whom, t muy concern:

Beit known that I, FRANK G. KOEHLER, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have inventedY certain new and useful Improvements in a Combined Split and Crosscut Shears, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a machine for splitting sheets of metal or other materials at any desired angle, or, if desired, it may be ad j ust# ed to cut the sheet crosswise of its length, and this is accomplished by the use of a single pair of blades which can be easily and quickly adjusted to cut any angle desired.

My invention consists in featuresof novelty hereinafter fully described, and pointed out in the claims.

Figure I is airont elevation of my machine. Fig. II is a side View part in section. Fig. III is a bottom view of the upper cutter-head, Fig. IV is a vertical section taken on line IV IV, Fig. III. Fig. Vis a detail view of the lower head with the blade and its supporting-plate removed.

Referring to the drawings, I'represents a" frame having a lower arm 2 and an upper arm 3. To the lower arm is bolted a stationary cutter-head 4, in the'upper face oi' which is an annular dovetail groove 5. Resting upon the circular part of the head 4 is a disk 6, that is held to the head by means of bolt 7, the heads of which rit in the dovetail groove 5 and which are introduced into the groove through a notch S, formed in one side of the ter-head 13. The slide 12 is adapted to move vertically between the guides 11 and is moved by means of an eccentric 14: or by other suitable means. Formed in the lower'face of the head 13 is an annular dovetail groove 15,corre spending to the groove 5 of the lower head 4 and which is providedV with a notch 1G, corresponding to the notch 8 ofthe head 4.

17 represents a disk connected to the head 13 by means of bolts 18, the heads of which it in the groove 15. The under side of the disk 17 is provided with a rib 19, to which the upper blade 2O is secured.

In the operation of the machine the blades and 2O are set at any desired angle by adjusting the disks '6 and 1'7, 'the heads of the connecting-bolts sliding in the grooves 5 andv as the disks are adjusted. n When the disks have been adjusted to the desired angle, the bolts are tightened and the disks held to their adjustment. It Will thus be observed that the machine ycan be used to cut a sheet at any desired angle between a longitudinal split and a-transverse one.

I claim as my invention- 1. In a machineof the class described, the combination of a pair of heads having annular dovetail grooves, blade-carrying disks f1tting against the heads, and connecting-bolts securing the vdisks to the heads and which t in said annular grooves, substantially as set forth.

2. In a machine of the class described, the combination of a pair of cutter-heads, a pair et blade-carryingA disks iitting against the heads, and a slot-and-bolt connection between the heads and the disks whereby the latter can be adjusted to change the angle of the blades, substantially as set forth. 

